As an approximate method, with the trigonometric function, the simple pendulum dynamical equation is simplified, and the approximate formula for the period of simple pendulum movement is presented.
利用三角函数作为一种近似方法，对单摆的动力学方程进行了简化，给出了大角度条件下单摆运动的周期的近似公式。
In agreement with the bearing deformation, approximate contact analysis is made with a simplified stiffness function formula obtained which is beneficial to computer programming.
与支座变形相一致，进行了接触问题的近似分析，得到了一个便于计算机编程的刚度函数算式。
In agreement with the bearing deformation, approximate contact analysis is made, and a simplified stiffness function formula that is benefit to computer programming is concluded.
与支座变形相一致，进行了接触问题的近似分析，得到了一个便于计算机编程的刚度函数算式。
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